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Ricci E, Bartalucci C, Russo C, Mariani M, Saffioti C, Massaccesi E, Pierri F, Brisca G, Moscatelli A, Caorsi R, Bruzzone B, Damasio MB, Marchese A, Mesini A, Castagnola E. Clinical and Radiological Features of Pneumocystis jirovecii Pneumonia in Children: A Case Series. J Fungi (Basel) 2024; 10:276. [PMID: 38667947 PMCID: PMC11050895 DOI: 10.3390/jof10040276] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2024] [Revised: 03/27/2024] [Accepted: 04/04/2024] [Indexed: 04/28/2024] Open
Abstract
BACKGROUND Pneumocytis jirovecii pneumonia (PJP) has high mortality rates in immunocompromised children, even though routine prophylaxis has decreased in incidence. The aim of this case series is to present the radiological and clinical pathway of PJP in a pediatric population. DESCRIPTION OF CASES All PJP cases in non-HIV/AIDS patients diagnosed at Istituto Giannina Gaslini Pediatric Hospital in Genoa (Italy) from January 2012 until October 2022 were retrospectively evaluated. Nine cases were identified (median age: 8.3 years), and of these, 6/9 underwent prophylaxis with trimethoprim/sulfamethoxazole (TMP/SMX; five once-a-week schedules and one three times-a-week schedule), while 3/9 did not receive this. PJP was diagnosed by real-time PCR for P. jirovecii-DNA in respiratory specimens in 7/9 cases and two consecutive positive detections of β-d-glucan (BDG) in the serum in 2/9 cases. Most patients (6/8) had a CT scan with features suggestive of PJP, while one patient did not undergo a scan. All patients were treated with TMP/SMX after a median time from symptoms onset of 3 days. In 7/9 cases, empirical TMP/SMX treatment was initiated after clinical suspicion and radiological evidence and later confirmed by microbiological data. Clinical improvement with the resolution of respiratory failure and 30-day survival included 100% of the study population. DISCUSSION Due to the difficulty in obtaining biopsy specimens, PJP diagnosis is usually considered probable in most cases. Moreover, the severity of the clinical presentation often leads physicians to start TMP/SMX treatment empirically. BDG proved to be a useful tool for diagnosis, and CT showed good accuracy in identifying typical patterns. In our center, single-day/week prophylaxis was ineffective in high-risk patients; the three-day/week schedule would, therefore, seem preferable and, in any case, should be started promptly in all patients who have an indication of pneumonia.
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Affiliation(s)
- Erica Ricci
- Division of Infectious Diseases, IRCCS Istituto Giannina Gaslini, Via Gerolamo Gaslini 5, 16147 Genoa, Italy; (E.R.); (C.R.); (C.S.); (E.C.)
| | - Claudia Bartalucci
- Division of Infectious Diseases, Department of Health Sciences (DISSAL), University of Genoa, 16132 Genoa, Italy;
- IRCCS Ospedale Policlinico San Martino, 16132 Genoa, Italy
| | - Chiara Russo
- Division of Infectious Diseases, IRCCS Istituto Giannina Gaslini, Via Gerolamo Gaslini 5, 16147 Genoa, Italy; (E.R.); (C.R.); (C.S.); (E.C.)
- Department of Neuroscience, Rehabilitation, Ophthalmology, Genetics, Maternal and Child Health (DINOGMI), University of Genova, 16132 Genoa, Italy
| | - Marcello Mariani
- Division of Infectious Diseases, IRCCS Istituto Giannina Gaslini, Via Gerolamo Gaslini 5, 16147 Genoa, Italy; (E.R.); (C.R.); (C.S.); (E.C.)
| | - Carolina Saffioti
- Division of Infectious Diseases, IRCCS Istituto Giannina Gaslini, Via Gerolamo Gaslini 5, 16147 Genoa, Italy; (E.R.); (C.R.); (C.S.); (E.C.)
| | - Erika Massaccesi
- Division of Ematology, IRCCS Istituto Giannina Gaslini, 16147 Genoa, Italy
| | - Filomena Pierri
- Unit of Bone Marrow Transplantation, IRCCS Istituto Giannina Gaslini, 16147 Genoa, Italy
| | - Giacomo Brisca
- Division of Neonatal and Pediatric Critical Care and Semi-Intensive Care, IRCCS Istituto Giannina Gaslini, 16147 Genoa, Italy; (G.B.); (A.M.)
| | - Andrea Moscatelli
- Division of Neonatal and Pediatric Critical Care and Semi-Intensive Care, IRCCS Istituto Giannina Gaslini, 16147 Genoa, Italy; (G.B.); (A.M.)
| | - Roberta Caorsi
- Center for Autoinflammatory Diseases and Immunodeficiencies, IRCCS Istituto Giannina Gaslini, 16147 Genoa, Italy
| | - Bianca Bruzzone
- Hygiene Unit, Department of Health Sciences, Ospedale Policlinico San Martino, University of Genoa, 16132 Genoa, Italy
| | | | - Anna Marchese
- Microbiology Unit, Department of Surgical Sciences and Integrated Diagnostics (DISC), University of Genoa, 16132 Genoa, Italy;
| | - Alessio Mesini
- Division of Infectious Diseases, IRCCS Istituto Giannina Gaslini, Via Gerolamo Gaslini 5, 16147 Genoa, Italy; (E.R.); (C.R.); (C.S.); (E.C.)
| | - Elio Castagnola
- Division of Infectious Diseases, IRCCS Istituto Giannina Gaslini, Via Gerolamo Gaslini 5, 16147 Genoa, Italy; (E.R.); (C.R.); (C.S.); (E.C.)
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Trubin PA, Azar MM. Current Concepts in the Diagnosis and Management of Pneumocystis Pneumonia in Solid Organ Transplantation. Infect Dis Clin North Am 2023:S0891-5520(23)00026-0. [PMID: 37142510 DOI: 10.1016/j.idc.2023.03.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
Pneumocystis infection manifests predominantly as an interstitial pneumonia in immunocompromised patients. Diagnostic testing in the appropriate clinical context can be highly sensitive and specific and involves radiographic imaging, fungal biomarkers, nucleic acid amplification, histopathology, and lung fluid or tissue sampling. Trimethoprim-sulfamethoxazole remains the first-choice agent for treatment and prophylaxis. Investigation continues to promote a deeper understanding of the pathogen's ecology, epidemiology, host susceptibility, and optimal treatment and prevention strategies in solid organ transplant recipients.
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Affiliation(s)
- Paul A Trubin
- Department of Medicine, Section of Infectious Diseases, Yale School of Medicine, 135 College Street, New Haven, CT 06510, USA.
| | - Marwan M Azar
- Department of Medicine, Section of Infectious Diseases; Department of Laboratory Medicine; Yale School of Medicine, 135 College Street, New Haven, CT 06510, USA
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Ibrahim A, Chattaraj A, Iqbal Q, Anjum A, Rehman MEU, Aijaz Z, Nasir F, Ansar S, Zangeneh TT, Iftikhar A. Pneumocystis jiroveci
Pneumonia: A Review of Management in Human Immunodeficiency Virus (HIV) and Non-HIV Immunocompromised Patients. Avicenna J Med 2023; 13:23-34. [PMID: 36969352 PMCID: PMC10038753 DOI: 10.1055/s-0043-1764375] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/26/2023] Open
Abstract
Pneumocystis jirovecii
pneumonia is an opportunistic fungal infection that was mainly associated with pneumonia in patients with advanced human immunodeficiency virus (HIV) disease. There has been a decline in
Pneumocystis jirovecii
pneumonia incidence in HIV since the introduction of antiretroviral medications. However, its incidence is increasing in non-HIV immunocompromised patients including those with solid organ transplantation, hematopoietic stem cell transplantation, solid organ tumors, autoimmune deficiencies, and primary immunodeficiency disorders. We aim to review and summarize the etiology, epidemiology, clinical presentation, diagnosis, and management of
Pneumocystis jirovecii
pneumonia in HIV, and non-HIV patients. HIV patients usually have mild-to-severe symptoms, while non-HIV patients present with a rapidly progressing disease. Induced sputum or bronchoalveolar lavage fluid can be used to make a definitive diagnosis of
Pneumocystis jirovecii
pneumonia. Trimethoprim-sulfamethoxazole is considered to be the first-line drug for treatment and has proven to be highly effective for
Pneumocystis jirovecii
pneumonia prophylaxis in both HIV and non-HIV patients. Pentamidine, atovaquone, clindamycin, and primaquine are used as second-line agents. While several diagnostic tests, treatments, and prophylactic regimes are available at our disposal, there is need for more research to prevent and manage this disease more effectively.
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Affiliation(s)
- Atif Ibrahim
- North Mississippi Medical Center, Tupelo, Mississippi, United States
| | - Asmi Chattaraj
- University of Pittsburgh Medical Center, McKeesport, Pennsylvania, United States
| | - Qamar Iqbal
- TidalHealth, Salisbury, Maryland, United States
| | - Ali Anjum
- King Edward Medical University, Lahore, Pakistan
| | | | | | | | - Sadia Ansar
- Rawal Institute of Health Sciences, Islamabad, Pakistan
| | - Tirdad T. Zangeneh
- Division of Infectious Diseases, Department of Medicine, University of Arizona, Tucson, Arizona, United States
| | - Ahmad Iftikhar
- Department of Internal Medicine, University of Arizona, Tucson, Arizona, United States
- Address for correspondence Ahmad Iftikhar, MD Department of Medicine, University of Arizona1525N. Campbell Avenue, PO Box 245212, Tucson, AZ 85724
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4
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Principles and Guidelines of Immunotherapy in Neuromuscular Disorders. Neuromuscul Disord 2022. [DOI: 10.1016/b978-0-323-71317-7.00007-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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5
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Mantadakis E. Pneumocystis jirovecii Pneumonia in Children with Hematological Malignancies: Diagnosis and Approaches to Management. J Fungi (Basel) 2020; 6:jof6040331. [PMID: 33276699 PMCID: PMC7761543 DOI: 10.3390/jof6040331] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Revised: 12/01/2020] [Accepted: 12/01/2020] [Indexed: 12/21/2022] Open
Abstract
Pneumocystis jirovecii pneumonia (PJP) is an opportunistic infection that mostly affects children with suppressed cellular immunity. PJP was the most common cause of infectious death in children with acute lymphoblastic leukemia prior to the inclusion of cotrimoxazole prophylaxis as part of the standard medical care in the late 1980s. Children with acute leukemia, lymphomas, and those undergoing hematopoietic stem cell transplantation, especially allogeneic transplantation, are also at high risk of PJP. Persistent lymphopenia, graft versus host disease, poor immune reconstitution, and lengthy use of corticosteroids are significant risk factors for PJP. Active infection may be due to reactivation of latent infection or recent acquisition from environmental exposure. Intense hypoxemia and impaired diffusing capacity of the lungs are hallmarks of PJP, while computerized tomography of the lungs is the diagnostic technique of choice. Immunofluorescence testing with monoclonal antibodies followed by fluorescent microscopy and polymerase chain reaction testing of respiratory specimens have emerged as the best diagnostic methods. Measurement of (1-3)-β-D-glucan in the serum has a high negative predictive value in ruling out PJP. Oral cotrimoxazole is effective for prophylaxis, but in intolerant patients, intravenous and aerosolized pentamidine, dapsone, and atovaquone are effective alternatives. Ιntravenous cotrimoxazole is the treatment of choice, but PJP has a high mortality even with appropriate therapy.
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Affiliation(s)
- Elpis Mantadakis
- Department of Pediatrics, Hematology/Oncology Unit, University General Hospital of Alexandroupolis, Democritus University of Thrace, 68 100 Alexandroupolis, Thrace, Greece
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6
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Dunphy L, Patel N, Palmer B, McKeown E. Missed opportunity to diagnose HIV with Pneumocystis carinii pneumonia as its sequela. BMJ Case Rep 2020; 13:e235386. [PMID: 32587119 PMCID: PMC7319719 DOI: 10.1136/bcr-2020-235386] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/18/2020] [Indexed: 11/03/2022] Open
Abstract
Pneumocystis carinii pneumonia (PCP) is an opportunistic infection of the lung occurring primarily in patients with HIV infection with a CD4 cell count <200 mm3, solid organ transplant recipients and those taking immunosuppressive therapy. The 1980s heralded the HIV pandemic, turning PCP into a major medical and public health problem worldwide. Manifestations of unusual infections such as pneumocystis and Kaposi's sarcoma, were, after all, the first signs of the emerging pandemic to be recognised and may indeed, be the presenting feature of a previously undiagnosed HIV infection. With the advent of pneumocystis chemoprophylaxis and the initiation of highly active antiretroviral therapy, there has been a decreased incidence in developed countries, but it remains high in developing countries. Unfortunately, late presentation of HIV remains a problem resulting in significant morbidity and mortality. The authors report the case of a new diagnosis of HIV infection in a 45-year-old woman, presenting with a dry cough, dyspnoea, unintentional weight loss and PCP. Two weeks after commencing highly active antiretroviral therapy, she was diagnosed with immune reconstitution inflammatory syndrome. Research shows that stigma and discrimination in the healthcare setting contributes to keeping individuals from accessing HIV prevention, care and treatment services and adopting key preventive behaviours. The barriers to HIV testing and stigma eradication in primary care will be explored as well as missed opportunities to diagnosis HIV in primary care in individuals presenting with signs and symptoms of immunosuppression, in this case shingles.
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Affiliation(s)
- Louise Dunphy
- Department of Acute Medicine, The Royal Berkshire Hospital, Reading, United Kingdom
| | - Neil Patel
- Department of Acute Medicine, The Royal Berkshire Hospital, Reading, United Kingdom
| | - Bret Palmer
- Department of Acute Medicine, The Royal Berkshire Hospital, Reading, United Kingdom
| | - Edward McKeown
- Department of Acute Medicine, The Royal Berkshire Hospital, Reading, United Kingdom
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7
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Pediatric thymic atrophy with malnutrition and opportunistic lung infection: A case report. FORENSIC SCIENCE INTERNATIONAL: REPORTS 2019. [DOI: 10.1016/j.fsir.2019.100052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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8
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Dako F, Kako B, Nirag J, Simpson S. High-resolution CT, histopathologic, and clinical features of granulomatous pneumocystis jiroveci pneumonia. Radiol Case Rep 2019; 14:746-749. [PMID: 30992733 PMCID: PMC6449737 DOI: 10.1016/j.radcr.2019.03.016] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2019] [Revised: 03/13/2019] [Accepted: 03/13/2019] [Indexed: 01/15/2023] Open
Abstract
Although pneumocystis jiroveci pneumonia was historically associated with HIV/AID patients, there is a recent shift in demographics with increasing incidence in patients with hematologic malignancies and transplants. A granulomatous response to pneumocytis jiroveci infection is uncommon and most commonly presents as multiple randomly distributed nodules on chest imaging. Granulomatous pneumocytis jiroveci pneumonia presents with similar clinical manifestations as typical pneumocytis pneumonia but is usually not detected by bronchoalveolar lavage and may require biopsy for a definitive diagnosis. For this reason, the radiologist may be the first provider to suggest this diagnosis and guide management.
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Affiliation(s)
- Farouk Dako
- Temple University Hospital, Department of Radiology, 3401 North Broad Street, Philadelphia, PA 19140, USA
- Corresponding author.
| | - Bashar Kako
- Temple University, Massachusetts General Hospital, 55 Fruit Street, Boston, MA 02114, USA
| | - Jhala Nirag
- Temple University, Pathology and Laboratory Medicine, 3401 North Broad Street, Philadelphia, PA 19140, USA
| | - Scott Simpson
- Hospital of the University of Pennsylvania, Department of Radiology, 3400 Spruce Street, Philadelphia, PA 19104, USA
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9
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Murdaca G, Negrini S, Pellecchio M, Greco M, Schiavi C, Giusti F, Puppo F. Update upon the infection risk in patients receiving TNF alpha inhibitors. Expert Opin Drug Saf 2019; 18:219-229. [DOI: 10.1080/14740338.2019.1577817] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Giuseppe Murdaca
- Clinical Immunology Unit, Department of Internal Medicine, University of Genoa and Ospedale Policlinico San Martino, Genoa, Italy
| | - Simone Negrini
- Clinical Immunology Unit, Department of Internal Medicine, University of Genoa and Ospedale Policlinico San Martino, Genoa, Italy
| | - Marco Pellecchio
- Clinical Immunology Unit, Department of Internal Medicine, University of Genoa and Ospedale Policlinico San Martino, Genoa, Italy
| | - Monica Greco
- Clinical Immunology Unit, Department of Internal Medicine, University of Genoa and Ospedale Policlinico San Martino, Genoa, Italy
| | - Chiara Schiavi
- Clinical Immunology Unit, Department of Internal Medicine, University of Genoa and Ospedale Policlinico San Martino, Genoa, Italy
| | - Francesca Giusti
- Clinical Immunology Unit, Department of Internal Medicine, University of Genoa and Ospedale Policlinico San Martino, Genoa, Italy
| | - Francesco Puppo
- Clinical Immunology Unit, Department of Internal Medicine, University of Genoa and Ospedale Policlinico San Martino, Genoa, Italy
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10
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Nethathe G, Patel N. Survival after Pneumocystis jirovecii pneumonia requiring ventilation: A case report. South Afr J HIV Med 2016; 17:474. [PMID: 29568616 PMCID: PMC5843145 DOI: 10.4102/sajhivmed.v17i1.474] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2016] [Accepted: 09/05/2016] [Indexed: 11/08/2022] Open
Abstract
Pneumocystis pneumonia (PCP) in patients with the human immunodeficiency virus (HIV) is associated with a high mortality rate, which increases substantially with the need for mechanical ventilation. Local experience of patients with PCP admitted to the intensive care unit has revealed mortality rates close to 100%. We present a case of a 39-year-old HIV-infected man diagnosed with PCP who was successfully weaned from mechanical ventilation after presenting with respiratory distress and severe hypoxaemia. A short review of the literature will also be presented.
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Affiliation(s)
- Gladness Nethathe
- Intensive Care Unit, Chris Hani Baragwanath Academic Hospital, South Africa
| | - Nirav Patel
- Department of Pediatric Surgery, University of the Witwatersrand, South Africa
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11
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Williams KM, Ahn KW, Chen M, Aljurf MD, Agwu AL, Chen AR, Walsh TJ, Szabolcs P, Boeckh MJ, Auletta JJ, Lindemans CA, Zanis-Neto J, Malvezzi M, Lister J, de Toledo Codina JS, Sackey K, Chakrabarty JLH, Ljungman P, Wingard JR, Seftel MD, Seo S, Hale GA, Wirk B, Smith MS, Savani BN, Lazarus HM, Marks DI, Ustun C, Abdel-Azim H, Dvorak CC, Szer J, Storek J, Yong A, Riches MR. The incidence, mortality and timing of Pneumocystis jiroveci pneumonia after hematopoietic cell transplantation: a CIBMTR analysis. Bone Marrow Transplant 2016; 51:573-80. [PMID: 26726945 PMCID: PMC4823157 DOI: 10.1038/bmt.2015.316] [Citation(s) in RCA: 60] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2015] [Revised: 10/13/2015] [Accepted: 11/01/2015] [Indexed: 11/09/2022]
Abstract
Pneumocystis jiroveci pneumonia (PJP) is associated with high morbidity and mortality after hematopoietic stem cell transplantation (HSCT). Little is known about PJP infections after HSCT because of the rarity of disease given routine prophylaxis. We report the results of a Center for International Blood and Marrow Transplant Research study evaluating the incidence, timing, prophylaxis agents, risk factors and mortality of PJP after autologous (auto) and allogeneic (allo) HSCT. Between 1995 and 2005, 0.63% allo recipients and 0.28% auto recipients of first HSCT developed PJP. Cases occurred as early as 30 days to beyond a year after allo HSCT. A nested case cohort analysis with supplemental data (n=68 allo cases, n=111 allo controls) revealed that risk factors for PJP infection included lymphopenia and mismatch after HSCT. After allo or auto HSCT, overall survival was significantly poorer among cases vs controls (P=0.0004). After controlling for significant variables, the proportional hazards model revealed that PJP cases were 6.87 times more likely to die vs matched controls (P<0.0001). We conclude PJP infection is rare after HSCT but is associated with high mortality. Factors associated with GVHD and with poor immune reconstitution are among the risk factors for PJP and suggest that protracted prophylaxis for PJP in high-risk HSCT recipients may improve outcomes.
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Affiliation(s)
- K M Williams
- Children's Research Institute, Children's National Health System, Washington, DC, USA
| | - K W Ahn
- CIBMTR (Center for International Blood and Marrow Transplant Research), Department of Medicine, Medical College of Wisconsin, Milwaukee, WI, USA.,Division of Biostatistics, Institute for Health and Society, Medical College of Wisconsin, Milwaukee, WI, USA
| | - M Chen
- CIBMTR (Center for International Blood and Marrow Transplant Research), Department of Medicine, Medical College of Wisconsin, Milwaukee, WI, USA
| | - M D Aljurf
- Department of Oncology, King Faisal Specialist Hospital Center & Research, Riyadh, Saudi Arabia
| | - A L Agwu
- Department of Pediatrics, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - A R Chen
- Department of Pediatrics, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - T J Walsh
- Division of Blood and Marrow Transplantation and Cellular Therapies, Children's Hospital of Pittsburgh of UPMC, Pittsburgh, PA, USA
| | - P Szabolcs
- Department of Medicine, Weill Cornell Medical College, New York, NY, USA
| | - M J Boeckh
- Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, WA, USA
| | - J J Auletta
- Divisions of Hematology/Oncology, Bone Marrow Transplantation and Infectious Diseases, Nationwide Children's Hospital, Columbus, OH, USA
| | - C A Lindemans
- Pediatric Blood and Marrow Transplantation Program, University Medical Center Utrecht, Utrecht, Netherlands
| | - J Zanis-Neto
- Hospital de Clínicas - Universidade Federal do Paraná, Curitiba, Brazil
| | - M Malvezzi
- Hospital de Clínicas - Universidade Federal do Paraná, Curitiba, Brazil
| | - J Lister
- Cell Transplantation Program, Western Pennsylvania Cancer Institute, Pittsburgh, PA, USA
| | - J S de Toledo Codina
- Paediatric Oncology, Haematology and SCT Department, Hospital Infantil Vall d'Hebron, Barcelona, Spain
| | - K Sackey
- Department of Pediatric Hematology/Oncology, King Faisal Specialist Hospital & Research Center, Riyadh, Saudi Arabia
| | - J L H Chakrabarty
- Department of Hematology/Oncology, University of Oklahoma, Oklahoma City, OK, USA
| | - P Ljungman
- Department of Hematology, Karolinska University, Stockholm, Sweden
| | - J R Wingard
- Division of Hematology & Oncology, Department of Medicine, University of Florida, Gainesville, FL, USA
| | - M D Seftel
- Department of Medical Oncology and Hematology, Princess Margaret Cancer Centre, Toronto, Ontario, Canada
| | - S Seo
- Department of Medicine, Weill Cornell Medical College, New York, NY, USA
| | - G A Hale
- Department of Hematology/Oncology, All Children's Hospital, St. Petersburg, FL, USA
| | - B Wirk
- Division of Bone Marrow Transplant, Seattle Cancer Care Alliance, Seattle, WA, USA
| | - M S Smith
- Viracor-IBT Laboratories, Lee's Summit, MO, USA
| | - B N Savani
- Division of Hematology/Oncology, Department of Medicine, Vanderbilt University Medical Center, Nashville, TN, USA
| | - H M Lazarus
- Seidman Cancer Center, University Hospitals Case Medical Center, Cleveland, OH, USA
| | - D I Marks
- Pediatric Bone Marrow Transplant, University Hospitals Bristol NHS Trust, Bristol, UK
| | - C Ustun
- Division of Hematology, Oncology and Transplantation, Department of Medicine, University of Minnesota Medical Center, Minneapolis, MN, USA
| | - H Abdel-Azim
- Division of Hematology, Oncology and Blood & Marrow Transplantation, Children's Hospital Los Angeles, University of Southern California Keck School of Medicine, Los Angeles, CA, USA
| | - C C Dvorak
- Department of Pediatrics, University of California San Francisco Medical Center, San Francisco, CA, USA
| | - J Szer
- Department Clinical Haematology and Bone Marrow Transplantation, Royal Melbourne Hospital, Victoria, Australia
| | - J Storek
- Department of Medicine, University of Calgary, Calgary, Alberta, Canada
| | - A Yong
- Royal Adelaide Hospital/SA Pathology and School of Medicine, University of Adelaide, Adelaide, Australia
| | - M R Riches
- Division of Hematology and Oncology, Department of Medicine, University of North Carolina, Chapel Hill, NC, USA
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Iriart X, Bouar ML, Kamar N, Berry A. Pneumocystis Pneumonia in Solid-Organ Transplant Recipients. J Fungi (Basel) 2015; 1:293-331. [PMID: 29376913 PMCID: PMC5753127 DOI: 10.3390/jof1030293] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2015] [Revised: 09/01/2015] [Accepted: 09/02/2015] [Indexed: 12/27/2022] Open
Abstract
Pneumocystis pneumonia (PCP) is well known and described in AIDS patients. Due to the increasing use of cytotoxic and immunosuppressive therapies, the incidence of this infection has dramatically increased in the last years in patients with other predisposing immunodeficiencies and remains an important cause of morbidity and mortality in solid-organ transplant (SOT) recipients. PCP in HIV-negative patients, such as SOT patients, harbors some specificity compared to AIDS patients, which could change the medical management of these patients. This article summarizes the current knowledge on the epidemiology, risk factors, clinical manifestations, diagnoses, prevention, and treatment of Pneumocystis pneumonia in solid-organ transplant recipients, with a particular focus on the changes caused by the use of post-transplantation prophylaxis.
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Affiliation(s)
- Xavier Iriart
- Department of Parasitology-Mycology, Centre Hospitalier Universitaire de Toulouse, Hôpital Purpan, Institut Fédératif de biologie (IFB), 330 avenue de Grande Bretagne, TSA 40031, Toulouse 31059, France.
- INSERM U1043, Toulouse F-31300, France.
- CNRS UMR5282, Toulouse F-31300, France.
- Université de Toulouse, UPS, Centre de Physiopathiologie de Toulouse Purpan (CPTP), Toulouse F-31300, France.
| | - Marine Le Bouar
- Department of Parasitology-Mycology, Centre Hospitalier Universitaire de Toulouse, Hôpital Purpan, Institut Fédératif de biologie (IFB), 330 avenue de Grande Bretagne, TSA 40031, Toulouse 31059, France.
- INSERM U1043, Toulouse F-31300, France.
- CNRS UMR5282, Toulouse F-31300, France.
- Université de Toulouse, UPS, Centre de Physiopathiologie de Toulouse Purpan (CPTP), Toulouse F-31300, France.
| | - Nassim Kamar
- INSERM U1043, Toulouse F-31300, France.
- Université de Toulouse, UPS, Centre de Physiopathiologie de Toulouse Purpan (CPTP), Toulouse F-31300, France.
- Department of Nephrology and Organ Transplantation, CHU Rangueil, TSA 50032, Toulouse 31059, France.
| | - Antoine Berry
- Department of Parasitology-Mycology, Centre Hospitalier Universitaire de Toulouse, Hôpital Purpan, Institut Fédératif de biologie (IFB), 330 avenue de Grande Bretagne, TSA 40031, Toulouse 31059, France.
- INSERM U1043, Toulouse F-31300, France.
- CNRS UMR5282, Toulouse F-31300, France.
- Université de Toulouse, UPS, Centre de Physiopathiologie de Toulouse Purpan (CPTP), Toulouse F-31300, France.
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Murdaca G, Spanò F, Contatore M, Guastalla A, Penza E, Magnani O, Puppo F. Infection risk associated with anti-TNF-α agents: a review. Expert Opin Drug Saf 2015; 14:571-82. [PMID: 25630559 DOI: 10.1517/14740338.2015.1009036] [Citation(s) in RCA: 138] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
INTRODUCTION TNF-α is a pro-inflammatory cytokine known to a have a key role in the pathogenesis of chronic immune-mediated diseases. TNF-α inhibitors can be administered either as monotherapy or in combination with other anti-inflammatory or disease-modifying anti-rheumatic drugs (DMARDs) to treat chronic immune-mediated diseases. AREAS COVERED Patients receiving TNF-α inhibitors are at high risk of infections. Based on our experience, in this paper, we discuss the risk of infections associated with the administration of TNF-α inhibitors and the strategies for mitigating against the development of these serious adverse events. EXPERT OPINION Infliximab more so than etanercept appears to be responsible for the increased risk of infections. Re-activation of latent tuberculosis (LTB) infection and the overall risk of opportunistic infections should be considered before beginning TNF-α inhibitor therapy. A careful medical history, Mantoux test and chest-x-ray should always be performed before prescribing TNF-α inhibitors. Particular attention should be paid to risk factors for Pneumocystis jirovecii infection. Hepatitis B and C virological follow-up should be considered during TNF-α inhibitor treatment. Finally, patients who are at high risk of herpes zoster (HZ) reactivation would benefit from a second vaccination in adulthood when receiving TNF-α inhibitors.
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Affiliation(s)
- Giuseppe Murdaca
- University of Genova, Department of Internal Medicine, Clinical Immunology Unit , Viale Benedetto XV, n. 6, 16132 Genova , Italy +39 0103537924 ; +39 0105556950 ;
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Morrow BM, Samuel CM, Zampoli M, Whitelaw A, Zar HJ. Pneumocystis pneumonia in South African children diagnosed by molecular methods. BMC Res Notes 2014; 7:26. [PMID: 24410938 PMCID: PMC3892044 DOI: 10.1186/1756-0500-7-26] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2012] [Accepted: 01/03/2014] [Indexed: 12/02/2022] Open
Abstract
Background Pneumocystis pneumonia (PCP) is an important cause of hospitalization and mortality in HIV-infected children. However, the incidence of PCP has been underestimated due to poor sensitivity of diagnostic tests. The use of polymerase chain reaction (PCR) for pneumocystis has enabled more reliable diagnosis. This study describes the incidence, clinical features and outcome of PCP in South African children diagnosed using PCR. Methods A prospective study of children hospitalised in South Africa with suspected PCP was done from November 2006 to August 2008. Clinical, laboratory and radiological information were collected. Lower respiratory tract specimens were obtained for PCP immunofluorescence (IF), real- time PCR for pneumocystis, bacterial and mycobacterial culture. Nasopharyngeal aspirates were taken for immunofluorescence (IF), real-time PCR for pneumocystis and PCR for respiratory viruses. A blood specimen for bacterial culture and for cytomegalovirus PCR was taken. Children were followed for the duration of their hospitalisation and the outcome was recorded. Results 202 children [median (interquartile range, IQR) age 3.2 (2.1– 4.6) months] were enrolled; 124 (61.4%) were HIV infected. PCP was identified in 109 (54%) children using PCR, compared to 43 (21%) using IF and Grocott staining (p < 0.0001). Most PCP cases (88, 81%) occurred in HIV-infected children. All 21 cases (19%) occurring in HIV- negative children had another risk factor for PCP. On logistic regression, predictive factors for PCP were HIV infection, lack of fever, high respiratory rate and low oxygen saturation whilst cotrimoxazole prophylaxis was protective (OR 0.24; 95% CI 0.1 to 0.5; p < 0.002). The case fatality of children with PCP was higher than those without PCP (32.1% versus 17.2%; relative risk 1.87; 95% confidence interval (CI) 1.11 – 3.15). Amongst HIV-infected children, a CD4 less than 15% was the only independent predictor of mortality. Conclusions The diagnostic yield for PCP is more than 2.5 times higher on PCR than other detection methods. PCP is a very common cause of severe hypoxic pneumonia and is associated with high mortality in HIV-infected African infants.
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Affiliation(s)
- Brenda M Morrow
- Department of Paediatics and Child Health, Red Cross War Memorial Children's Hospital (RCWMCH), University of Cape Town, 5th Floor Institute of Child Health Building, Klipfontein Road, Rondebosch 7700, Cape Town, South Africa.
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Sato T, Inokuma S, Maezawa R, Nakayama H, Hamasaki K, Miwa Y, Okazaki Y, Yamashita M, Tanaka Y, Kono H. Clinical characteristics ofPneumocystis cariniipneumonia in patients with connective tissue diseases. Mod Rheumatol 2014. [DOI: 10.3109/s10165-005-0395-9] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Moussaid Y, Bertaux M, Chargari C, Helissey C, Le Moulec S, Errihani H, Vedrine L. Fièvre et cancer : éléments de diagnostic pour une prise en charge adaptée. Rev Med Interne 2013. [PMID: 23199412 DOI: 10.1016/j.revmed.2012.10.368] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Y Moussaid
- Service d'oncologie et radiothérapie, hôpital d'instruction des armées du Val-de-Grâce, 74, boulevard de Port-Royal, 75230 Paris cedex 05, France.
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Characterizing Pneumocystis in the lungs of bats: understanding Pneumocystis evolution and the spread of Pneumocystis organisms in mammal populations. Appl Environ Microbiol 2012; 78:8122-36. [PMID: 23001662 DOI: 10.1128/aem.01791-12] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Bats belong to a wide variety of species and occupy diversified habitats, from cities to the countryside. Their different diets (i.e., nectarivore, frugivore, insectivore, hematophage) lead Chiroptera to colonize a range of ecological niches. These flying mammals exert an undisputable impact on both ecosystems and circulation of pathogens that they harbor. Pneumocystis species are recognized as major opportunistic fungal pathogens which cause life-threatening pneumonia in severely immunocompromised or weakened mammals. Pneumocystis consists of a heterogeneous group of highly adapted host-specific fungal parasites that colonize a wide range of mammalian hosts. In the present study, 216 lungs of 19 bat species, sampled from diverse biotopes in the New and Old Worlds, were examined. Each bat species may be harboring a specific Pneumocystis species. We report 32.9% of Pneumocystis carriage in wild bats (41.9% in Microchiroptera). Ecological and behavioral factors (elevation, crowding, migration) seemed to influence the Pneumocystis carriage. This study suggests that Pneumocystis-host association may yield much information on Pneumocystis transmission, phylogeny, and biology in mammals. Moreover, the link between genetic variability of Pneumocystis isolated from populations of the same bat species and their geographic area could be exploited in terms of phylogeography.
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Muñoz C, Zuluaga A, Restrepo A, Tobón A, Cano LE, Gonzalez A. Molecular diagnosis and detection of Pneumocystis jirovecii DHPS and DHFR genotypes in respiratory specimens from Colombian patients. Diagn Microbiol Infect Dis 2012; 72:204-13. [PMID: 22321995 DOI: 10.1016/j.diagmicrobio.2011.11.015] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2011] [Revised: 11/17/2011] [Accepted: 11/19/2011] [Indexed: 11/16/2022]
Abstract
A total of 98 respiratory specimens from 88 patients suspected of having Pneumocystis jirovecii pneumonia (PcP) were evaluated using a previously reported nested polymerase chain reaction (PCR) assay for mitochondrial large subunit rRNA (mtLSUrRNA). In addition, samples from patients with other pulmonary infections and a sizeable DNA collection from other fungal pathogens were studied. A panfungal PCR assay amplifying the ITS1-ITS2 regions were also used to identify all fungal DNAs. All samples positive for mtLSUrRNA-PCR were evaluated to determine mutations in dihydropteroate synthase (DHPS) and dihydrofolate reductase (DHFR) genes. All PCR-amplified products were sequenced. Of the 98 clinical specimens, 13 (13.2%) were positive by GMS stain and mtLSUrRNA-PCR, while 32 (32.6%) that were GMS stain-negative gave positive results with mtLSUrRNA-PCR. All the sequences corresponding to the 45 products amplified by mtLSUrRNA-PCR showed 99% or greater identity with P. jirovecii. The mtLSUrRNA-PCR exhibited 86% sensitivity and 98% and 96.6% specificity when results were compared to those corresponding to negative controls and other proven clinical entities, respectively. We found mutations in the DHPS gene in 3 (7.7%) patients, 2 located at codon 55 and 1 at codon 57. One patient showed a synonymous substitution at nucleotide position 312 in the DHFR gene. These results suggest that mtLSUrRNA-PCR is a useful test for diagnosing PcP. In contrast to other studies, this study found a low prevalence of mutations in the DHPS and DHFR genes in Colombian patients.
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Affiliation(s)
- Cesar Muñoz
- Medical and Experimental Mycology Group, Corporación para Investigaciones Biológicas, Medellín, Colombia
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Pneumocystosis in a patient with Crohn's disease treated with combination therapy with adalimumab. J Crohns Colitis 2012; 6:483-7. [PMID: 22398055 DOI: 10.1016/j.crohns.2011.10.012] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/08/2011] [Revised: 10/25/2011] [Accepted: 10/26/2011] [Indexed: 02/08/2023]
Abstract
Pneumocystis jirovecii pneumonia (PCP) is a potential complication of immunosuppression. Crohn's disease (CD) is an immune granulomatous disorder characterized by transmural inflammation that can affect any part of the gastrointestinal tract. Its treatment is based on steroids and immunosuppressants but in non-responders, biologic compounds such as anti-tumor necrosis factor alpha (TNF) antibodies have been used. Neutralization of TNF causes a decrease in the inflammatory response but increases susceptibility to opportunistic infections such as fungal infections. We report a young male with chronic diarrhea, fever and weight loss who was diagnosed with CD and began conventional treatment with immunosuppressants, but due to lack of response after several weeks, biologic therapy with adalimumab was initiated. Seven weeks later he developed persistent fever and upper respiratory symptoms. After chest CT, bronchoscopy and bronchial lavage, P. jirovecii was identified by silver staining and confirmed by immunofluorescence. To our knowledge this is the second case of pneumocystosis associated with the use of adalimumab in CD and the first reported Mexican case confirmed by microbiological and immunological studies in this setting.
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Ng B, Dipchand A, Naftel D, Rusconi P, Boyle G, Zaoutis T, Edens RE. Outcomes of Pneumocystis jiroveci pneumonia infections in pediatric heart transplant recipients. Pediatr Transplant 2011; 15:844-8. [PMID: 22112000 PMCID: PMC4354851 DOI: 10.1111/j.1399-3046.2011.01589.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
Abstract
PJP is known to cause significant morbidity and rarely death in immunosuppressed patients. The prevalence and outcomes of PJP in pediatric solid-organ transplant patients are not well established. This study utilizes data from the PHTS to establish the prevalence and outcome of PJP in pediatric heart transplant recipients. We conducted a retrospective cohort study using data from the PHTS, including data from 24 institutions between January 1, 1993, and December 31, 2004. Infections that occur in PHTS subjects are recorded in a standardized data collection form. The prevalence and outcomes of PJP in pediatric heart transplant recipients were determined. There were a total of 18 patients (1%) with PJP out of the 1854 pediatric heart transplant recipients in the PHTS database. A majority of PJP occurred two months to two yr post-transplant, and patients with PJP had a significantly decreased mortality compared with other fungal infections. PJP is an infrequent complication experienced by pediatric heart transplant recipients. Patients that have experienced PJP have an increased survival compared to patients with other fungal infections, and most PJP occurred within two yr of transplant.
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Affiliation(s)
- Benton Ng
- Department of Pediatrics, University of Iowa Children’s Hospital, Iowa City, IA, USA
| | - Anne Dipchand
- Department of Pediatrics, Hospital for Sick Children, Toronto, Ontario, Canada
| | - David Naftel
- Department of Surgery, University of Alabama, Birmingham, AL
| | - Paolo Rusconi
- Miller School of Medicine, University of Miami, Miami, FL
| | - Gerard Boyle
- Department of Pediatrics, Cleveland Clinic Children’s Hospital, Cleveland, OH
| | - Theo Zaoutis
- Department of Pediatrics, Children’s Hospital of Philadelphia, Philadephia, PA, USA
| | - R. Erik Edens
- Department of Pediatrics, University of Iowa Children’s Hospital, Iowa City, IA, USA
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Pneumocystis jirovecii testing by real-time polymerase chain reaction and direct examination among immunocompetent and immunosuppressed patient groups and correlation to disease specificity. Diagn Microbiol Infect Dis 2011; 69:145-52. [PMID: 21251557 DOI: 10.1016/j.diagmicrobio.2010.10.021] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2010] [Revised: 10/20/2010] [Accepted: 10/22/2010] [Indexed: 01/13/2023]
Abstract
We used real-time polymerase chain reaction (PCR) targeting the cdc2 gene and direct fluorescent microscopy examination (DFME) to evaluate the prevalence of Pneumocystis jirovecii among immunocompetent patients without clinical pulmonary infection and immunosuppressed patients evaluated for opportunistic pulmonary infections. Among 102 bronchoalveolar lavage samples collected from immunocompetent patients without infection, none tested positive for P. jirovecii by either DFME or real-time PCR despite the presence of other comorbidities. Among patients with suspected pulmonary infection and tested with either assay, real-time PCR produced a higher number of positive results compared to DFME and increased P. jirovecii detection by 7% when added to DFME-negative samples. Real-time PCR may have increased sensitivity for P. jirovecii detection over DFME and decrease the risk of sample contamination compared to conventional and nested PCR. The use of single-copy gene targets (e.g., cdc2) may lower the rate of "colonization" detection and confer a high predictive value for Pneumocystis pneumonia.
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Toper C, Rivaud E, Daniel C, Cerf C, Parquin F, Catherinot E, Honderlick P, Escande MC, Dreyfus JF, Stern M, Couderc LJ. [Pneumocystis jirovecii pneumonia in non-HIV infected patients: a study of 41 cases]. REVUE DE PNEUMOLOGIE CLINIQUE 2011; 67:191-198. [PMID: 21920277 DOI: 10.1016/j.pneumo.2011.06.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 06/06/2011] [Indexed: 05/31/2023]
Abstract
BACKGROUND The increasing use of immunosuppressive and cytotoxic therapies leads to a growing number of opportunistic infections especially Pneumocystis jirovecii pneumonia (PCP). The purpose of our study was to describe the population involved, and to assess clinical, biological, and mortality data. METHODS We collected retrospectively the whole medical file of all PCP cases diagnosed in non-HIV infected patients, in two French University Hospitals in the last decade (1999-2009). Diagnosis was made on standard coloration and/or immunofluorescence analysis of bronchoalveolar lavage fluid (BAL). RESULTS Forty-one patients were included in the study, mean age 56 (±12.5) years, sex ratio 0.71 men/woman. Underlying diseases were as follow: 12 patients (29%) were renal transplant recipients, 13 (32%) were treated for solid cancers, and 16 (39%) suffered from various diseases (three allogenic bone-marrow transplantation, 11 hematological malignancies, one pulmonary transplantation, one vasculitis). Twelve patients died (i.e. 29%). Median lymphocyte count was 542/mm(3). More than 85% patients received corticosteroids at a median cumulative 6-month dose of 2700mg. Seven patients (17%) had a PCP prophylaxis. Clinical worsening at day 5 (P<0.003), poor control of the underlying disease (P<0.015), WHO performans status superior than 2 (P<0.025), high temperature (P<0.04), and high oxygen flow (P<0.042) were linked to a poor prognosis. DISCUSSION/CONCLUSION The prognosis factors found are mostly linked to the patients' clinical severity. We would like to highlight: first, near to 30% mortality rate, secondly, a lack of prophylaxis in 34 patients, reflecting the difficulty to define PCP's risk in non HIV-infected patients.
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Affiliation(s)
- C Toper
- Service de Pneumologie, Hôpital Foch, 40, rue Worth, 92150 Suresnes, France.
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Carmona EM, Lamont JD, Xue A, Wylam M, Limper AH. Pneumocystis cell wall beta-glucan stimulates calcium-dependent signaling of IL-8 secretion by human airway epithelial cells. Respir Res 2010; 11:95. [PMID: 20626862 PMCID: PMC2912823 DOI: 10.1186/1465-9921-11-95] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2009] [Accepted: 07/13/2010] [Indexed: 01/03/2023] Open
Abstract
BACKGROUND Respiratory failure secondary to alveolar inflammation during Pneumocystis pneumonia is a major cause of death in immunocompromised patients. Neutrophil infiltration in the lung of patients with Pneumocystis infection predicts severity of the infection and death. Several previous studies indicate that airway epithelial cells release the neutrophil chemoattractant proteins, MIP-2 (rodents) and IL-8 (humans), in response to Pneumocystis and purified Pneumocystis cell wall beta-glucans (PCBG) through the NF-kappaB-dependent pathway. However, little is known about the molecular mechanisms that are involved in the activation of airway epithelium cells by PCBG resulting in the secretion of IL-8. METHOD To address this, we have studied the activation of different calcium-dependent mitogen-activated protein kinases (MAPKs) in 1HAEo- cells, a human airway epithelial cell line. RESULTS Our data provide evidence that PCBG induces phosphorylation of the MAPKs, ERK, and p38, the activation of NF-kappaB and the subsequently secretion of IL-8 in a calcium-dependent manner. Further, we evaluated the role of glycosphingolipids as possible receptors for beta-glucans in human airway epithelial cells. Preincubation of the cells with D-threo-1-phenyl-2-decanoylamino-3-morpholino-1-propanol (PDMP) a potent inhibitor of the glycosphingolipids synthesis, prior to PCBG stimulation, significantly decreased IL-8 production. CONCLUSION These data indicate that PCBG activates calcium dependent MAPK signaling resulting in the release of IL-8 in a process that requires glycosphingolipid for optimal signaling.
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Affiliation(s)
- Eva M Carmona
- Thoracic Diseases Research Unit, Division of Pulmonary Critical Care and Internal Medicine, Department of Medicine Mayo Clinic and Foundation, Rochester, Minnesota, 55905, USA
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Catherinot E, Lanternier F, Bougnoux ME, Lecuit M, Couderc LJ, Lortholary O. Pneumocystis jirovecii Pneumonia. Infect Dis Clin North Am 2010; 24:107-38. [PMID: 20171548 DOI: 10.1016/j.idc.2009.10.010] [Citation(s) in RCA: 140] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Pneumocystis jirovecii has gained attention during the last decade in the context of the AIDS epidemic and the increasing use of cytotoxic and immunosuppressive therapies. This article summarizes current knowledge on biology, pathophysiology, epidemiology, diagnosis, prevention, and treatment of pulmonary P jirovecii infection, with a particular focus on the evolving pathophysiology and epidemiology. Pneumocystis pneumonia still remains a severe opportunistic infection, associated with a high mortality rate.
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Affiliation(s)
- Emilie Catherinot
- Université Paris Descartes, Service de Maladies Infectieuses et Tropicales, 149 Rue de Sèvres, Centre d'Infectiologie Necker-Pasteur, Hôpital Necker-Enfants Malades, Paris 75015, France
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Douzinas EE, Flevari K, Andrianakis I, Betrosian AP. Oral atovaquone for the treatment of severe Pneumocystis jirovecii pneumonia in a patient with glucose-6-phosphate dehydrogenase deficiency. ACTA ACUST UNITED AC 2010; 42:76-8. [PMID: 19883154 DOI: 10.3109/00365540903321606] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
We present a case of severe Pneumocystis jirovecii pneumonia and coexisting cytomegalovirus infection in a glucose-6-phosphate dehydrogenase (G6PD) enzyme deficient woman with anaplastic astrocytoma on temozolomide and corticosteroid therapy. She was successfully treated with oral atovaquone and ganciclovir. Atovaquone represents a safe alternative in severe Pneumocystis infection when trimethoprim-sulfamethoxazole (co-trimoxazole) is contraindicated.
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Affiliation(s)
- Emmanuel E Douzinas
- 3rd Department of Critical Care, Athens University, Evgenidion Hospital, 20 Papadiamantopoulou str., Athens, Greece
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Katsuya H, Suzumiya J, Sasaki H, Ishitsuka K, Shibata T, Takamatsu Y, Tamura K. Addition of rituximab to cyclophosphamide, doxorubicin, vincristine, and prednisolone therapy has a high risk of developing interstitial pneumonia in patients with non-Hodgkin lymphoma. Leuk Lymphoma 2009; 50:1818-23. [DOI: 10.3109/10428190903258780] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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Introducing mediterranean journal of hematology and infectious diseases. Mediterr J Hematol Infect Dis 2009; 1:e2009001. [PMID: 21415983 PMCID: PMC3033169 DOI: 10.4084/mjhid.2009.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2009] [Accepted: 06/17/2009] [Indexed: 11/14/2022] Open
Abstract
Mediterranean Journal of Hematology and Infectious Diseases (MJHID) is a new open access, peer-reviewed, online journal, which encompasses different aspects of clinical and translational research providing an insight into the relationship between acute and chronic infections and hematological diseases. MJHID will be a topical journal on subjects of current importance in clinical haematology and infectious diseases. Every issue should have, beside the editor in chief, a guest editor. Both editor in chief and guest editor provide to invite experts in the selected topic to performe a complete update of the arguments readily available for practising phisicians. The journal will have also a section devoted to original papers, case reports and letters to editor and Editorial comment mostly focusing on the arguments treated in the previous topical issues.
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Schwarzberg AB, Stover EH, Sengupta T, Michelini A, Vincitore M, Baden LR, Kulke MH. Selective Lymphopenia and Opportunistic Infections in Neuroendocrine Tumor Patients Receiving Temozolomide. Cancer Invest 2009; 25:249-55. [PMID: 17612935 DOI: 10.1080/07357900701206380] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Temozolomide is utilized as a treatment for a variety of solid tumors and has been associated with the development of selective lymphopenia. We evaluated the incidence of lymphopenia and opportunistic infections during treatment and up to 12 months following treatment discontinuation in a cohort of 39 patients receiving temozolomide for advanced neuroendocrine tumors. The incidence of Grade 3-4 lymphopenia was 46 percent after 4 months of therapy and remained at 30 percent or greater for 12 months following treatment discontinuation. The overall incidence of opportunistic infections was 10 percent, while among patients receiving therapy for > or =7 months, the incidence was 20 percent. Prophylaxis for Pneumocystis jiroveci pneumonia and varicella-zoster, as well as cytomegalovirus monitoring, should be considered in patients receiving temozolomide-based treatment.
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Prognostic indicators related to death in patients with Pneumocystis pneumonia associated with collagen vascular diseases. Rheumatol Int 2009; 29:1327-30. [PMID: 19142640 DOI: 10.1007/s00296-009-0857-z] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2008] [Accepted: 01/05/2009] [Indexed: 10/21/2022]
Abstract
The objective of this study is to investigate the clinical markers of life-threatening Pneumocystis pneumonia (PCP) in patients with collagen vascular diseases (CVD). The patients who contracted Pneumocystis jeroveccii were retrospectively selected from our medical charts and conditions related to the patients' death were reviewed. The findings indicated that lower levels of serum albumin and cholinesterase, increased alveolar-arterial oxygen gradient, intratracheal intubation, and necessity to treat in the intensive care unit were significantly related to deaths associated with PCP in CVD. A special attention should be paid to decreased serum albumin and cholinesterase as ominous predictors in PCP occurred in patients with CVD.
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Christensen PJ, Preston AM, Ling T, Du M, Fields WB, Curtis JL, Beck JM. Pneumocystis murina infection and cigarette smoke exposure interact to cause increased organism burden, development of airspace enlargement, and pulmonary inflammation in mice. Infect Immun 2008; 76:3481-90. [PMID: 18490462 PMCID: PMC2493196 DOI: 10.1128/iai.00165-08] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2008] [Revised: 03/08/2008] [Accepted: 05/11/2008] [Indexed: 11/20/2022] Open
Abstract
Chronic obstructive pulmonary disease (COPD) is characterized by the presence of airflow obstruction and lung destruction with airspace enlargement. In addition to cigarette smoking, respiratory pathogens play a role in pathogenesis, but specific organisms are not always identified. Recent reports demonstrate associations between the detection of Pneumocystis jirovecii DNA in lung specimens or respiratory secretions and the presence of emphysema in COPD patients. Additionally, human immunodeficiency virus-infected individuals who smoke cigarettes develop early emphysema, but a role for P. jirovecii in pathogenesis remains speculative. We developed a new experimental model using immunocompetent mice to test the interaction of cigarette smoke exposure and environmentally acquired Pneumocystis murina infection in vivo. We hypothesized that cigarette smoke and P. murina would interact to cause increases in total lung capacity, airspace enlargement, and pulmonary inflammation. We found that exposure to cigarette smoke significantly increases the lung organism burden of P. murina. Pulmonary infection with P. murina, combined with cigarette smoke exposure, results in changes in pulmonary function and airspace enlargement characteristic of pulmonary emphysema. P. murina and cigarette smoke exposure interact to cause increased lung inflammatory cell accumulation. These findings establish a novel animal model system to explore the role of Pneumocystis species in the pathogenesis of COPD.
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Affiliation(s)
- Paul J Christensen
- Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, University of Michigan Medical School, Ann Arbor, Michigan 48105, USA
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Abstract
Pneumocystis pneumonia (PCP) is a serious complication of chemotherapy-induced immunosuppression. Trimethoprim-sulfamethoxazole (TMP-SMZ) given twice daily, 3 days every week is considered the best form of prophylaxis for PCP. We evaluated PCP prophylaxis in all children up to 18 years of age undergoing cancer chemotherapy over a 2-year period. Four children were diagnosed with PCP over 24 months. Two of 12 children on intravenous pentamidine, 1 of 143 on TMP-SMZ and 1 of 36 on dapsone for PCP prophylaxis developed PCP. Intravenous pentamidine may not be as effective as previously considered and should be used with caution.
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Affiliation(s)
- Pinki Prasad
- Divisions of Pediatric Hematology/Oncology, Vanderbilt University School of Medicine, Nashville, Tennessee, USA
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Chuang C, Zhanhong X, Yinyin G, Qingsi Z, Shuqing Z, Nanshan Z. Unsuspected Pneumocystis pneumonia in an HIV-seronegative patient with untreated lung cancer: circa case report. J Med Case Rep 2007; 1:115. [PMID: 17963527 PMCID: PMC2147019 DOI: 10.1186/1752-1947-1-115] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2007] [Accepted: 10/28/2007] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Patients with solid malignant tumours are at increased risk of Pneumocystis jiroveci infection from immunosuppression as a result of chemotherapy and/or radiotherapy, but active Pneumocystis pneumonia (PCP) in untreated lung cancer is uncommon. CASE PRESENTATION A 43-year-old woman presented with prolonged fever, progressive dyspnoea, diffuse alveolar and interstitial infiltrates. Malignant cells were found on sputum cytology, confirming the diagnosis of lung cancer. She had been treated with corticosteroids and antibiotics but did not receive chemotherapy or radiotherapy. Pneumocystis jiroveci was later found in the sputum but she proved to be HIV negative. CONCLUSION Unsuspected PCP can occur in chemotherapy and radiotherapy-naïve, HIV-seronegative patients with lung cancer. The complex clinicoradiological manifestations of PCP with underlying lung cancer can lead to delay in diagnosis and may worsen the prognosis.
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Affiliation(s)
- Cai Chuang
- Guangzhou Institute of Respiratory Disease, First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510012, China, .
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33
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Wung PK, Stone JH. Therapeutics of Wegener's granulomatosis. ACTA ACUST UNITED AC 2006; 2:192-200. [PMID: 16932685 DOI: 10.1038/ncprheum0139] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2005] [Accepted: 11/24/2005] [Indexed: 11/08/2022]
Abstract
The treatment of Wegener's granulomatosis, one of the most common forms of systemic vasculitis, has changed substantially over the past two decades. The principal aims of therapy are to control the disease swiftly, to limit the extent and severity of permanent organ damage, and to minimize the short-term and long-term morbidities that often result from therapy. This review provides an overview of the treatment regimens that are currently available for inducing and maintaining remission in patients with Wegener's granulomatosis, and also discusses newer agents that might have a role in the management of this disease in the future. Severe toxicity associated with the available agents and, therefore, there is keen interest in the development of alternative treatment strategies for this disease.
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Affiliation(s)
- Peter K Wung
- Johns Hopkins Bayview Medical Center, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD 21224, USA
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Fontaine C, Bonnard P, Mary-Krause M, Callard P, Pialoux G. Pulmonary pneumocystosis in a patient with greater than 500 CD4 cells/microl: a role for IL-2 therapy? AIDS 2006; 20:1680-1. [PMID: 16868455 DOI: 10.1097/01.aids.0000238420.28689.3d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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35
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Riebold D, Fritzsche C, Lademann M, Bier A, Reisinger EC. Pneumocystis jiroveci dihydropteroate synthase gene mutations at codon 171 but not at codons 55 or 57 detected in Germany. Clin Infect Dis 2006; 42:582-3. [PMID: 16421813 DOI: 10.1086/500019] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022] Open
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Varela Aguilar JM, Medrano Ortega FJ, Calderón Sandubete E. Pneumocystis jirovecii: un nuevo nombre para un viejo patógeno. Rev Clin Esp 2006; 206:278-80. [PMID: 16762291 DOI: 10.1157/13088588] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Pneumonia due to Pneumocystis is an important cause of morbidity-mortality among immunodepressed patients, above all with human immunodeficiency virus infection and finally in patients with transplants, oncology patients and those subjected to drug immunodepression. Its lack of capacity to grow in the usual culture mediums has hindered knowledge on many aspects of this infection (transmission, acquisition mode, infection sources). However, the incorporation of molecular biology tools in recent years has made it possible to go deeper into the understanding of the epidemiology, biology and characteristics of the infection by this pathogen. These advances have led to the modification of the taxonomic classification of this atypical fungus and change in the name of the Pneumocystis responsible for the infection in humans, which is now called Pneumocystis jirovecii. During this article, we will show some of the most recent advances in the knowledge of the human pneumocystosis.
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Affiliation(s)
- J M Varela Aguilar
- Servicio de Medicina Interna, Hospital Universitario Virgen del Rocío, Sevilla, España.
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37
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Torres HA, Chemaly RF, Storey R, Aguilera EA, Nogueras GM, Safdar A, Rolston KVI, Raad II, Kontoyiannis DP. Influence of type of cancer and hematopoietic stem cell transplantation on clinical presentation of Pneumocystis jiroveci pneumonia in cancer patients. Eur J Clin Microbiol Infect Dis 2006; 25:382-8. [PMID: 16767486 DOI: 10.1007/s10096-006-0149-4] [Citation(s) in RCA: 54] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
Pneumocystis jiroveci pneumonia is a common infection in patients with AIDS but an infrequent cause of pneumonia in cancer patients. Little is known about the impact of cancer type and hematopoietic stem cell transplantation on the presentation and outcome of P. jiroveci pneumonia in cancer patients. A retrospective cohort study of all patients with cancer and P. jiroveci pneumonia cared for at The M.D. Anderson Cancer Center during 1990-2003 was conducted. Eighty episodes of P. jiroveci pneumonia in 79 patients were identified. In most (67%) episodes, patients had a hematologic malignancy. In 23 (29%) episodes, patients had undergone hematopoietic stem cell transplantation. Twenty-seven percent of patients with histopathologically confirmed P. jiroveci pneumonia had nodular infiltrates on the radiographic study. Pleural effusion and pneumothorax were more common in patients with hematopoietic stem cell transplantation than in those with solid tumors. Clinical suspicion of P. jiroveci pneumonia was less common in patients with nodular infiltrates than in those without such a radiographic finding (7 vs. 39%; p=0.002). Twenty-six of 76 (34%) patients with data available died of P. jiroveci pneumonia. Predictors of death by univariate analysis included older age, tachypnea, high APACHE II score, use of mechanical ventilation or vasopressors, lower arterial pH level, absence of interstitial component, pneumothorax, and comorbid conditions (all p<0.05). Multivariate analysis identified the use of mechanical ventilation as an independent predictor of death. Death attributable to P. jiroveci pneumonia appeared to be higher in patients with hematopoietic stem cell transplantation. The clinical presentation of P. jiroveci pneumonia in cancer patients may be affected by the category of cancer and the history of hematopoietic stem cell transplantation. P. jiroveci pneumonia remains a rare yet severe infection in cancer patients.
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Affiliation(s)
- H A Torres
- Department of Infectious Diseases, Infection Control and Employee Health, The University of Texas M.D. Anderson Cancer Center, Houston, TX, USA
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38
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Sirithanakul K, Salloum A, Klein JL, Soubani AO. Pulmonary complications following hematopoietic stem cell transplantation: diagnostic approaches. Am J Hematol 2005; 80:137-46. [PMID: 16184594 DOI: 10.1002/ajh.20437] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Pulmonary complications are a significant cause of morbidity and mortality in hematopoietic stem cell transplant recipients. Pulmonary infiltrates in such patients pose a major challenge for clinicians because of the wide differential diagnosis of infectious and noninfectious conditions. It is rare for the diagnosis to be made by chest radiograph, and commonly these patients will need further invasive and noninvasive studies to confirm the etiology of the pulmonary infiltrates. This review describes the role of the different diagnostic tools available to reach a diagnosis in a timely manner in this patient population.
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Affiliation(s)
- Kasem Sirithanakul
- Division of Pulmonary/Critical Care and Sleep Medicine and Stem Cell Transplantation Unit, Karmanos Cancer Institute, Wayne State University School of Medicine, Detroit, Michigan, USA
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39
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Dickerman RD, Joseph AM, Bennett MT. Corticosteroid-induced myopathy in spinal cord injury patients: a role for anticatabolic agents? Spinal Cord 2005; 44:263-4. [PMID: 16172629 DOI: 10.1038/sj.sc.3101814] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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40
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Peterson JC, Cushion MT. Pneumocystis: not just pneumonia. Curr Opin Microbiol 2005; 8:393-8. [PMID: 15996508 DOI: 10.1016/j.mib.2005.06.010] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2005] [Accepted: 06/20/2005] [Indexed: 11/16/2022]
Abstract
Once known exclusively as the agents of severe pneumonia in immunocompromised individuals, Pneumocystis spp. are now being associated with asymptomatic carriage in hosts that do not have profound immune debilitation. In the absence of a cultivation system, polymerase chain reaction and histological studies have identified Pneumocystis in neonatal populations, in pregnant women and in other patients that have chronic underlying disease processes. These findings in humans and in experimental animal models indicate the presence of potential reservoirs of infection, and provide insights into the transmission of this fungus. Also, the role of Pneumocystis has been investigated as a possible co-morbidity factor.
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Affiliation(s)
- J Chad Peterson
- Department of Infectious Disease, University of Cincinnati College of Medicine, Cincinnati, OH 45267-0560, USA
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41
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Atochina EN, Beck JM, Preston AM, Haczku A, Tomer Y, Scanlon ST, Fusaro T, Casey J, Hawgood S, Gow AJ, Beers MF. Enhanced lung injury and delayed clearance of Pneumocystis carinii in surfactant protein A-deficient mice: attenuation of cytokine responses and reactive oxygen-nitrogen species. Infect Immun 2004; 72:6002-11. [PMID: 15385504 PMCID: PMC517574 DOI: 10.1128/iai.72.10.6002-6011.2004] [Citation(s) in RCA: 51] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Surfactant protein A (SP-A), a member of the collectin family, selectively binds to Pneumocystis carinii and mediates interactions between pathogen and host alveolar macrophages in vitro. To test the hypothesis that mice lacking SP-A have delayed clearance of Pneumocystis organisms and enhanced lung injury, wild-type C57BL/6 (WT) and SP-A-deficient mice (SP-A(-/-)) with or without selective CD4(+)-T-cell depletion were intratracheally inoculated with Pneumocystis organisms. Four weeks later, CD4-depleted SP-A-deficient mice had developed a more severe Pneumocystis infection than CD4-depleted WT (P. carinii pneumonia [PCP] scores of 3 versus 2, respectively). Whereas all non-CD4-depleted WT mice were free of PCP, intact SP-A(-/-) mice also had evidence of increased organism burden. Pneumocystis infection in SP-A-deficient mice was associated histologically with enhanced peribronchial and/or perivascular cellularity (score of 4 versus 2, SP-A(-/-) versus C57BL/6 mice, respectively) and a corresponding increase in bronchoalveolar lavage (BAL) cell counts. Increases in SP-D content, gamma interferon, interleukin-4, interleukin-5, and tumor necrosis factor alpha in BAL fluid occurred but were attenuated in PCP-infected SP-A(-/-) mice compared to WT mice. There were increases in total BAL NO levels in both infected groups, but nitrite levels were higher in SP-A(-/-) mice, indicating a reduction in production of higher oxides of nitrogen that was also reflected in lower levels of 3-nitrotyrosine staining in the SP-A(-/-) group. We conclude that despite increases in inflammatory cells, SP-A-deficient mice infected with P. carinii exhibit an enhanced susceptibility to the organism and attenuated production of proinflammatory cytokines and reactive oxygen-nitrogen species. These data support the concept that SP-A is a local effector molecule in the lung host defense against P. carinii in vivo.
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Affiliation(s)
- Elena N. Atochina
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, University of Pennsylvania School of Medicine, Division of Neonatology, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, University of Michigan Medical School and Veterans Affairs Medical Center, Ann Arbor, Michigan, Division of Neonatology, University of California at San Francisco, San Francisco, California
| | - James M. Beck
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, University of Pennsylvania School of Medicine, Division of Neonatology, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, University of Michigan Medical School and Veterans Affairs Medical Center, Ann Arbor, Michigan, Division of Neonatology, University of California at San Francisco, San Francisco, California
| | - Angela M. Preston
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, University of Pennsylvania School of Medicine, Division of Neonatology, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, University of Michigan Medical School and Veterans Affairs Medical Center, Ann Arbor, Michigan, Division of Neonatology, University of California at San Francisco, San Francisco, California
| | - Angela Haczku
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, University of Pennsylvania School of Medicine, Division of Neonatology, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, University of Michigan Medical School and Veterans Affairs Medical Center, Ann Arbor, Michigan, Division of Neonatology, University of California at San Francisco, San Francisco, California
| | - Yaniv Tomer
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, University of Pennsylvania School of Medicine, Division of Neonatology, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, University of Michigan Medical School and Veterans Affairs Medical Center, Ann Arbor, Michigan, Division of Neonatology, University of California at San Francisco, San Francisco, California
| | - Seth T. Scanlon
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, University of Pennsylvania School of Medicine, Division of Neonatology, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, University of Michigan Medical School and Veterans Affairs Medical Center, Ann Arbor, Michigan, Division of Neonatology, University of California at San Francisco, San Francisco, California
| | - Trevor Fusaro
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, University of Pennsylvania School of Medicine, Division of Neonatology, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, University of Michigan Medical School and Veterans Affairs Medical Center, Ann Arbor, Michigan, Division of Neonatology, University of California at San Francisco, San Francisco, California
| | - John Casey
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, University of Pennsylvania School of Medicine, Division of Neonatology, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, University of Michigan Medical School and Veterans Affairs Medical Center, Ann Arbor, Michigan, Division of Neonatology, University of California at San Francisco, San Francisco, California
| | - Samuel Hawgood
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, University of Pennsylvania School of Medicine, Division of Neonatology, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, University of Michigan Medical School and Veterans Affairs Medical Center, Ann Arbor, Michigan, Division of Neonatology, University of California at San Francisco, San Francisco, California
| | - Andrew J. Gow
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, University of Pennsylvania School of Medicine, Division of Neonatology, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, University of Michigan Medical School and Veterans Affairs Medical Center, Ann Arbor, Michigan, Division of Neonatology, University of California at San Francisco, San Francisco, California
| | - Michael F. Beers
- Division of Pulmonary, Allergy, and Critical Care Medicine, Department of Medicine, University of Pennsylvania School of Medicine, Division of Neonatology, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania, Division of Pulmonary and Critical Care Medicine, Department of Internal Medicine, University of Michigan Medical School and Veterans Affairs Medical Center, Ann Arbor, Michigan, Division of Neonatology, University of California at San Francisco, San Francisco, California
- Corresponding author. Mailing address: Pulmonary and Critical Care Division, University of Pennsylvania School of Medicine, 807 BRB II/III Bldg., 421 Curie Blvd., Philadelphia, PA 19104. Phone: (215) 898-9106. Fax: (215) 573-4469. E-mail:
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Calderón EJ, Varela JM, Medrano FJ, Nieto V, González-Becerra C, Respaldiza N, De La Horra C, Montes-Cano MA, Vigil E, González de la Puente MA, Cuello JA. Epidemiology of Pneumocystis carinii pneumonia in southern Spain. Clin Microbiol Infect 2004; 10:673-6. [PMID: 15214886 DOI: 10.1111/j.1469-0691.2004.00921.x] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
In order to investigate the impact of Pneumocystis carinii infection in southern Spain following the introduction of highly active anti-retroviral therapy (HAART), all cases of pneumocystosis between 1998 and 1999 were identified from data compiled by the national surveillance system. In total, 498 cases of pneumocystosis were recorded, of which 87% involved HIV-positive patients. The mean age, length of hospital stay and mortality were higher for HIV-negative patients. There was a higher number of cases in winter. Despite HAART implementation, pneumocystosis remains a significant health problem for both HIV-positive and HIV-negative patients.
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Affiliation(s)
- E J Calderón
- Department of Internal Medicine, Virgen del Rocio University Hospital, Seville, Spain.
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43
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Lauffer L, Kini JA, Costello P, Godleski J. Granulomatous Pneumocystis carinii Pneumonia in a Non-AIDS Patient. J Thorac Imaging 2004; 19:196-9. [PMID: 15273617 DOI: 10.1097/01.rti.0000122370.03620.7e] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
We present the computed tomographic findings of pulmonary involvement by granulomatous Pneumocystis carinii pneumonia in a 73-year-old woman recently tapered from a high-dose long-term systemic corticosteroid therapy for Factor VII deficiency.
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Affiliation(s)
- Lina Lauffer
- Department of Radiology, Brigham and Women's Hospital, Boston, Massachusetts 02115, USA
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44
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Shuey KM. Persistent fever and cough with nonspecific lower lung lobe consolidation. Clin J Oncol Nurs 2003; 7:463-6. [PMID: 12929283 DOI: 10.1188/03.cjon.463-466] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Gal AA, Plummer AL, Langston AA, Mansour KA. Granulomatous Pneumocystis carinii pneumonia complicating hematopoietic cell transplantation. Pathol Res Pract 2003; 198:553-8; discussion 559-61. [PMID: 12389999 DOI: 10.1078/0344-0338-00300] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Pneumocystis carinii pneunonia (PCP) is associated with a wide spectrum of clinical and histopathological presentations. While granulomatous PCP uncommonly occurs in AIDS patients, it is extremely rare in other non-AIDS immunocompromised patients. We identified three patients who developed granulomatous PCP after bone marrow or blood stem cell transplantation. In all cases, fiberoptic bronchoscopy with bronchoalveolar lavage was non-diagnostic, and an open lung biopsy was required for diagnosis. All patients were successfully treated with trimethoprim-sulfamethoxazole. The histological appearance varied from an ill-defined granulomatous pneumonia to well-formed necrotizing granulomas. The typical intraalveolar eosinophilic frothy exudate was absent. Often sparsely distributed, the organisms were detected by GMS and immunohistochemical stains for P. carinii. No other pathogens were identified by additional histochemical stains or by microbiological cultures. Awareness of this unusual granulomatous tissue response to P. carinii and initiation of specific treatment can lead to successful resolution of this potentially lethal infection.
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46
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Santamauro JT, Aurora RN, Stover DE. Pneumocystis carinii pneumonia in patients with and without HIV infection. COMPREHENSIVE THERAPY 2002; 28:96-108. [PMID: 12085467 DOI: 10.1007/s12019-002-0047-3] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Advances in the prevention and treatment of Pneumocystis carinii pneumonia in HIV infected patients have led to a decrease in the incidence and improved outcomes. Pneumocystis carinii pneumonia continues to be problematic in non-HIV infected immunocompromised patients.
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Affiliation(s)
- Jean T Santamauro
- Pulmonary Service, Memorial Sloan-Kettering Cancer Center, Room MRI 1013, 1275 York Avenue, New York, NY 10021, USA
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47
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Watanabe M, Aoki Y, Kurata H, Tanaka K. Pneumocystis carinii pneumonia in a patient with stage IV ovarian cancer. Gynecol Oncol 2002; 87:225-7. [PMID: 12477458 DOI: 10.1006/gyno.2002.6821] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
BACKGROUND Immunocompromised persons are considered to be at risk of developing Pneumocystis carinii pneumonia, although the incidence of this condition is much lower compared to the human immunodeficiency virus-positive group. It is important to identify specific individuals at high clinical risk to guide the chemoprophylaxis of P. carinii pneumonia. CASE A 42-year-old female with stage IV ovarian cancer developed P. carinii pneumonia during radiotherapy for brain metastasis while receiving 7 weeks of prednisolone. Four weeks before the diagnosis, her lymphocyte count dropped to 350/microl. She was treated with pentamidine followed by trimethoprim-sulfamethoxazole with the support of mechanical ventilation. The patient could then be weaned from mechanical ventilatory support. However, she was not able to receive any additional therapy for her ovarian cancer. CONCLUSION Cancer patients who receive corticosteroids during chemotherapy or radiation therapy are at risk of developing P. carinii pneumonia and should receive P. carinii pneumonia prophylaxis.
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Affiliation(s)
- Minoru Watanabe
- Department of Obstetrics and Gynecology, Niigata University Graduate School of Medical and Dental Sciences, Niigata, Japan
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48
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49
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Franklin RP, Long MT, MacNeill A, Alleman R, Giguère S, Uhl E, López-Martinez A, Wilkerson M. Proliferative Interstitial Pneumonia,Pneumocystis cariniiInfection, and Immunodeficiency in an Adult Paso Fino Horse. J Vet Intern Med 2002. [DOI: 10.1111/j.1939-1676.2002.tb02396.x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
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50
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Pagano L, Fianchi L, Mele L, Girmenia C, Offidani M, Ricci P, Mitra ME, Picardi M, Caramatti C, Piccaluga P, Nosari A, Buelli M, Allione B, Cortelezzi A, Fabbiano F, Milone G, Invernizzi R, Martino B, Masini L, Todeschini G, Cappucci MA, Russo D, Corvatta L, Martino P, Del Favero A. Pneumocystis carinii pneumonia in patients with malignant haematological diseases: 10 years' experience of infection in GIMEMA centres. Br J Haematol 2002; 117:379-86. [PMID: 11972521 DOI: 10.1046/j.1365-2141.2002.03419.x] [Citation(s) in RCA: 95] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
A retrospective survey was conducted over a 10-year period (1990-99) among 52 haematology divisions in order to evaluate the clinical and laboratory characteristics and outcome of patients with proven Pneumocystis carinii pneumonia (PCP) complicating haematological diseases. The study included 55 patients (18 with non-Hodgkin's lymphoma, 10 with acute lymphoblastic leukaemia, eight with acute myeloid leukaemia, five with chronic myeloid leukaemia, four with chronic lymphocytic leukaemia, four with multiple myeloma, three with myelodysplastic syndrome, two with myelofibrosis and one with thalassemia) who developed PCP. Among these, 18 (33%) underwent stem cell transplantation; only two received an oral prophylaxis with trimethroprim/sulphamethoxazole. Twelve patients (22%) developed PCP despite protective isolation in a laminar airflow room. The most frequent symptoms were: fever (86%), dyspnoea (78%), non-productive cough (71%), thoracic pain (14%) and chills (5%); a severe hypoxaemia was present in 39 patients (71%). Chest radiography or computerized tomography showed interstitial infiltrates in 34 patients (62%), alveolar infiltrates in 12 patients (22%), and alveolar-interstitial infiltrates in nine patients (16%). Bronchoalveolar lavage was diagnostic in 47/48 patients, induced sputum in 9/18 patients and lung biopsy in 3/8 patients. The diagnosis was made in two patients at autopsy. All patients except one started a specific treatment (52 patients trimethroprim/sulphamethoxazole, one pentamidine and one dapsone). Sixteen patients (29%) died of PCP within 30 d of diagnosis. Multivariate analysis showed that prolonged steroid treatment (P < 0.006) and a radiological picture of diffuse lung involvement (P < 0.003) were negative diagnostic factors.
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MESH Headings
- Acute Disease
- Adolescent
- Adult
- Aged
- Anti-Infective Agents/therapeutic use
- Bronchoalveolar Lavage Fluid/microbiology
- Female
- Hematologic Neoplasms/drug therapy
- Hematologic Neoplasms/microbiology
- Hematologic Neoplasms/mortality
- Humans
- Immunocompromised Host
- Leukemia, Lymphocytic, Chronic, B-Cell/drug therapy
- Leukemia, Lymphocytic, Chronic, B-Cell/microbiology
- Leukemia, Lymphocytic, Chronic, B-Cell/mortality
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/drug therapy
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/microbiology
- Leukemia, Myelogenous, Chronic, BCR-ABL Positive/mortality
- Leukemia, Myeloid/drug therapy
- Leukemia, Myeloid/microbiology
- Leukemia, Myeloid/mortality
- Lung/diagnostic imaging
- Lymphoma, Non-Hodgkin/drug therapy
- Lymphoma, Non-Hodgkin/microbiology
- Lymphoma, Non-Hodgkin/mortality
- Male
- Middle Aged
- Multiple Myeloma/drug therapy
- Multiple Myeloma/microbiology
- Multiple Myeloma/mortality
- Multivariate Analysis
- Myelodysplastic Syndromes/drug therapy
- Myelodysplastic Syndromes/microbiology
- Myelodysplastic Syndromes/mortality
- Pneumonia, Pneumocystis/complications
- Pneumonia, Pneumocystis/drug therapy
- Pneumonia, Pneumocystis/mortality
- Precursor Cell Lymphoblastic Leukemia-Lymphoma/drug therapy
- Precursor Cell Lymphoblastic Leukemia-Lymphoma/microbiology
- Precursor Cell Lymphoblastic Leukemia-Lymphoma/mortality
- Primary Myelofibrosis/drug therapy
- Primary Myelofibrosis/microbiology
- Primary Myelofibrosis/mortality
- Radiography
- Retrospective Studies
- Thalassemia/drug therapy
- Thalassemia/microbiology
- Thalassemia/mortality
- Treatment Outcome
- Trimethoprim, Sulfamethoxazole Drug Combination/therapeutic use
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Affiliation(s)
- Livio Pagano
- Institute of Hematology, Sacred Heart Catholic University, Largo Francesco Vito 1, I-00168 Rome, Italy.
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